Technical Data
CompareAnalyser
| Measuring Principle | UV photometric |
| Characteristic | Robust plastic housing All non-ex applications |
| Design | 2x Memosens input, 2 to 4x current output, Alarmrelay 2x relay, SD card for software update and copy & paste of setup |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two sensors connectable in any combination Functionality modular extendable at any time Plug and play for modules and sensors |
| Output / communication | 2 to 8x 0/4 to 20 mA current outputs Alarmrelay, 2x relay |
| Input | 1 to 2x Memosens digital input |
Concentration
| Measuring Principle | Fluorescence measurement |
Conductivity
| Measuring Principle | Conductive |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two sensors connectable in any combination Functionality modular extendable at any time Plug and play for modules and sensors |
| Characteristic | Robust plastic housing All non-ex applications |
| Design | 2x Memosens input, 2 to 4x current output, Alarmrelay 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 6.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Ingress protection | IP66 / IP67 |
| Input | 1 to 2x Memosens digital input |
| Output / communication | 2 to 8x 0/4 to 20 mA current outputs Alarmrelay, 2x relay |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
Disinfection
| Measuring Principle | Free chlorine |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two sensors connectable in any combination Functionality modular extendable at any time Plug and play for modules and sensors |
| Characteristic | Robust plastic housing All non-ex applications |
| Design | 2x Memosens input, 2 to 4x current output, Alarmrelay 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 7.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Input | 1 to 2x Memosens digital input |
| Output / communication | 2 to 4x 0/4 to 20 mA current outputs Alarmrelay, 2x relay |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
ORP / Redox
| Measuring Principle | Sensor ORP / Redox |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two sensors connectable in any combination Functionality modular extendable at any time Plug and play for modules and sensors |
| Characteristic | Robust plastic housing All non-ex applications |
| Design | 2x Memosens input, 2 to 4x current output, Alarmrelay, 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 6.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Ingress protection | IP66 / IP67 |
| Input | 1 to 2x Memosens digital input |
| Output / communication | 2 to 8x 0/4 to 20 mA current outputs Alarmrelay, 2x relay |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
Oxygen
| Measuring Principle | Amperometric oxygen measurement |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two sensors connectable in any combination Functionality modular extendable at any time Plug and play for modules and sensors |
| Characteristic | Robust plastic housing All non-ex applications |
| Design | 2x Memosens input, 2 to 4x current output, Alarmrelay 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 7.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Ingress protection | IP67 |
| Input | 1 to 2x Memosens digital input |
| Output / communication | 2 to 4x 0/4...20 mA current outputs Alarmrelay, 2x relay |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
Sludge Level
| Measuring Principle | Ultrasonic sensor |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two sensors connectable in any combination Functionality modular extendable at any time Plug and play for modules and sensors |
| Characteristic | Robust plastic housing All non-ex applications |
| Design | 2x Memosens input, 2 to 4x current output, Alarmrelay 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 7.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Ingress protection | IP66 / IP67 |
| Input | 1 to 2x Memosens digital input 2x 0/4 to 20mA input optional 2x Digital input optional |
| Output / communication | 2 to 8x 0/4 to 20 mA current outputs Alarmrelay, 2x relay, ProfibusDP, Modbus RS485, Modbus TCP, Ethernet |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
Turbidity
| Measuring Principle | Four beam alternating light |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two sensors connectable in any combination Functionality modular extendable at any time Plug and play for modules and sensors |
| Characteristic | Robust plastic housing All non-ex applications |
| Design | 2x Memosens input, 2 to 4x current output, Alarmrelay, 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 7.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Ingress protection | IP66 / IP67 |
| Input | 1 to 2x Memosens digital input 2x 0/4 to 20mA input optional 2x Digital input optional |
| Output / communication | 2 to 4x 0/4 to 20 mA current outputs, Alarmrelay, 2x relay |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
pH
| Measuring Principle | Potentiometric |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two sensors connectable in any combination Functionality modular extendable at any time Plug and play for modules and sensors |
| Characteristic | Robust plastic housing All non-ex applications |
| Design | 2x Memosens input, 2 to 4x current output, Alarmrelay, 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 6.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Ingress protection | IP66 / IP67 |
| Input | 1 to 2x Memosens digital input 2x 0/4 to 20mA input optional 2x Digital input optional |
| Output / communication | 2 to 8x 0/4 to 20 mA current outputs Alarmrelay, 2x relay, ProfibusDP, Modbus RS485, Modbus TCP, Ethernet |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
The CM442 is intended for non-hazardous areas. For hazardous-area applications, please select the CM42.
If no degree of protection is required, e.g. for cabinet installation, use the CM442R.
The Liquiline CM442 digital multiparameter transmitter is suitable for all process monitoring and control applications. The 1-/2-channel controller offers seamless system integration, simple operation and reduced spare parts storage, saving time and costs. The Liquiline CM442 is not only easy to operate but also ensures maximum process safety, making it a first-class transmitter platform.
Benefits:
Simple and flexible: one controller for all parameter measurements, intuitive user interface, automatic sensor recognition and precalibrated Memosens sensors for plug and play.
High adaptability: universal modules reduce spare parts inventory and allow easy expansion to an eight-channel measuring system at any time
Seamless system integration: unique combination of communication standards for all types of distributed control systems (DCS)
Simple and safe commissioning: communication with other devices via SD card for convenient setup, saving time and cost
Process control and safety: via the built-in web server, operators can access diagnostic data and parameters remotely, or access device parameters from any web browser - even from a smartphone.
Application areas:
The Liquiline CM442 multiparameter transmitter is suitable for all non-hazardous areas, including the following industries and their utilities:
Food & Beverage
Life sciences
Power & Energy
Water & Wastewater
Chemical industry
The Liquiline CM442 is compatible with all common communication protocols and interfaces, such as:
0/4...20 mA
HART
PROFIBUS DP
Modbus TCP / Modbus RS485
EtherNet/IP
Web server
Spare Parts & Accessories 90
90 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| 71100607 | Basic componentpower supply 24V AC/DC, 2x 0/4..20mA Out 2x digital sensor, alarm relay CM442/CSF48 | Details |
| 71431300 | 24V Basic BASE2-L Module | Details |
| 71100611 | CM442 Power Modulepower supply 100 - 230 V AC 50/60 Hz 2x 0/4..20mA Out 2x digital sensor, alarm relay | Details |
| 71431301 | CM442:BASE2-H Module | Details |
| 71111053 | 2-channel relay, 2x 0/4..20 mA Out CM442 / CM444 / C2x Relay, 2x 0/4..20mA Out CM442 / CM444 / CM448 / CSF48 CM442R / CM444R / CM448R | Details |
| 71125375 | 2-channel relay CM442 / CM444 / CM448 / CSF48CM442R2x Relay CM442 / CM444 / CM448 / CSF48 CM442R / CM444R / CM448R | Details |
| 71125376 | 4-channel relay, 4R accessory for CM442 / CM444 / CM448 / CSF484x Relay CM442 / CM444 / CM448 / CSF48 | Details |
| 71135632 | 2-channel relay, 2x 0/4..20 mA Out CM442 / CM444 / C2x 0/4..20mA Out CM442 / CM444 / CM448 / CSF48 CM442R / CM444R / CM448R | Details |
| 71135634 | Communication module: Modul ETH+Modbus TCP(+Webserver) Extendable via upgrade code to Profibus DP or Modbus RS485 or Modbus TCP or EtherNet/IP CM442/CM444/CM448/CSF48 CM442R/CM444R/CM448R Successor kit: 71575177 or 71575178 | Details |
| 71575177 | Kit Module 485DP | Details |
| 71575178 | Kit Modbus 485MB Expansion Module | Details |
| 71135639 | 2-channel 0/4..20 mA input CM442 / CM444 / CM448 / CS2x 0/4..20mA In CM442 / CM444 / CM448 / CSF48 CM442R / CM444R / CM448R | Details |
| 71135638 | DIO module2x digital in, 2x digital out CM442 / CM444 / CM448 / CSF48 CM442R / CM444R / CM448R | Details |
| 71272410 | Accessory containing hardware module only: upgrade Modbus TCP or EtherNet via upgrade code(+Webserver) extendable via upgrade code to Modbus TCP or EtherNet/IP CM442/CM444/CM448/CSF48 CM442R/CM444R/CM448R | Details |
| 71477718 | Kit module 2DS Ex-i | Details |
| 71111053 | 2-channel relay, 2x 0/4..20 mA Out CM442 / CM444 / C2x Relay, 2x 0/4..20mA Out CM442 / CM444 / CM448 / CSF48 CM442R / CM444R / CM448R | Details |
| 71125375 | 2-channel relay CM442 / CM444 / CM448 / CSF48CM442R2x Relay CM442 / CM444 / CM448 / CSF48 CM442R / CM444R / CM448R | Details |
| 71125376 | 4-channel relay, 4R accessory for CM442 / CM444 / CM448 / CSF484x Relay CM442 / CM444 / CM448 / CSF48 | Details |
| 71135632 | 2-channel relay, 2x 0/4..20 mA Out CM442 / CM444 / C2x 0/4..20mA Out CM442 / CM444 / CM448 / CSF48 CM442R / CM444R / CM448R | Details |
| 71135634 | Communication module: Modul ETH+Modbus TCP(+Webserver) Extendable via upgrade code to Profibus DP or Modbus RS485 or Modbus TCP or EtherNet/IP CM442/CM444/CM448/CSF48 CM442R/CM444R/CM448R Successor kit: 71575177 or 71575178 | Details |
Configurator / Comparison
A
This product has passed the Chinese environmental certification, a mandatory certificate for wastewater treatment plant projects:
Measuring principle video
Click to playSource: public information from the Endress+Hauser website
8 documents · click to expand
BA Liquiline CM442, CM444, CM448 Chinese
Memosens Chinese
BA Liquiline CM442/CM444/CM448 English
Memosens English
Operating Instructions English
Operating Instructions English
TI Liquiline CM442/CM444/CM448 Chinese
TI Liquiline CM442/CM444/CM448 English
Product Videos
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Calibrating ISEmax with the Liquiline CM44 Transmitter
4:40
Introduction to Heartbeat Technology for Liquiline CM44x
0:31
CM44 Transmitter: Factory Reset
1:04
CM44 Transmitter: Setting Up Simulation
3:42
Commissioning an Inductive Conductivity Sensor to the CM44 Transmitter
3:10
Calibrating a Contacting Conductivity Sensor with a CM44 Transmitter
Case Studies
Municipal Wastewater Treatment · multiparameter — Application Case
Application Context
the inlet, biological and outlet stages of a municipal plant is a typical Municipal Wastewater Treatment duty. The project started from multiparameter, focusing on monitoring several water parameters at one measuring point.
Process Constraints
effluent parameters drift and probes foul with sludge and biofilm, and high solids and corrosive fractions, with large diurnal flow swings only amplify it. The multiparameter specification must therefore cover configured by parameter set, mounting and cleaning needs.
Delivery Approach
Delivery was handled as the analyser range — selecting as part of a complete water-analysis system. Execution centred on configured by parameter set, mounting and cleaning needs, together with stable compliance with Grade 1A discharge limits and online data reporting.
Field Results
Operation shows the benefit clearly — one point replacing several single-parameter units, saving capex and upkeep, with confidence in this measuring point improving markedly.
Food & Beverage · multiparameter — Application Case
Customer Profile
The typical setting in Food & Beverage is dosing, pasteurising, filling and CIP stages. The measuring point is multiparameter; the focus is monitoring several water parameters at one measuring point.
Key Difficulties
Conditions are syrups, dairy and beverages that scale easily, under strict hygienic requirements and, on top of that, frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles, which a standard configuration cannot handle for long. The design therefore starts with configured by parameter set, mounting and cleaning needs.
Implementation
The scope ran through the analyser range: selecting as part of a complete water-analysis system. Technically it hinges on configured by parameter set, mounting and cleaning needs, and on these requirements: food-safety and hygienic design per 3-A / EHEDG.
Customer Benefit
In practice this means one point replacing several single-parameter units, saving capex and upkeep, which cut the workload on the site maintenance team.
Chemical & Pharmaceutical · multiparameter — Application Case
Project Background
The project covers reactors, metering vessels and finished-product tanks. The work centres on multiparameter and the core task is monitoring several water parameters at one measuring point.
Operating Challenges
The medium and duty are characterised by highly corrosive media with solvents and crystallisation, partly in explosive atmospheres, and corrosion plus Ex protection shortens instrument life and makes downtime costly. So multiparameter cannot be specified generically — it calls for configured by parameter set, mounting and cleaning needs.
Solution
The Ainstru engineering team worked through the analyser range: selecting as part of a complete water-analysis system. The configuration involves configured by parameter set, mounting and cleaning needs, with these requirements in view: Ex certification and GMP traceability of records.
Results
Since start-up the system has run steadily; the practical result is one point replacing several single-parameter units, saving capex and upkeep.
Power & Energy · multiparameter — Application Case
Project Overview
The site is boiler feedwater, turbine condensate and FGD/DeNOx systems. The customer wanted multiparameter properly configured on the existing plant, with the aim of monitoring several water parameters at one measuring point.
Technical Challenges
What actually causes trouble is high temperature and pressure with both steam and saline water, and drift under high temperature and pressure, with very costly unplanned outages. All of this means the multiparameter configuration has to involve configured by parameter set, mounting and cleaning needs.
Configuration
Supply and installation were organised through the analyser range: selecting as part of a complete water-analysis system. On site this meant configured by parameter set, mounting and cleaning needs, checked line by line against: compliance with power-industry codes and unit availability targets.
Performance
After commissioning the outcome is one point replacing several single-parameter units, saving capex and upkeep, and the readings are now used for process tuning.
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